Folder.



M. W. BRU'ESHABER.

FGLDER. APPLICATION nLEnAPR. '9. 19u.

Patented May 6, 1919.

j?? vena?! 542/@ @JM m W 3y tlz/S in the desired manner. It is thefprincipalE UNITED sTATEs PAnT risica.

MARTIN w. RRUESIIABRR, or OAK PARK, ILLrNoIs, AssIeNoR To THE Goss `PRINTINe rREss coMrANY, or cHIcAedILLINoIsA CORPORATION or ILLINOIS.

FOLDER.

Specification of Letters Patent. i Patented May 6, 1919.

/ Application inedAprn 9, 1917. ser1a1N0.1eo,s2e;

To all whom t may concern.' i

`Be it known that I, MARTIN W. BRUnsHA- BER, a citizen of the United States, and a resident of Oak Park,` in the county of Cook and State of Illinois, have invented certain new and `useful Improvements in Folders, of which` the following is a specification, reference being had to the accompanying drawings.

This invention relates tofolders fof` "the type employing' a cylinder for carrying a sheet or plurality ofsheets past a pair of folding rollers, thecylinder being provided with a folding blade which is thrust eut-` ward as it passes the folding rollers 'for carryingthe sheet or sheets into the bite `of said rollers. In a folding machine of this type employing an internal gear meshing with a gear mounted upon the folding" blade shaft for the purpose of thrusting theblade" outward into operative position between thefoldingrollers, a very considerable strain" has been placed upon the mechanism, -both by reason "of the unbalanced condition at the time the sheets are thrust outward into the bite ofthe folding rollers and also by reason of `the considerableforce which is required for projecting the folding blade and arrangement `of devices byl which the folding mechanism as a whole shall be kept` in as nearly as possible a balanced condition and by which the structure shall be strength-` ened and reinforcedso as to prevent undue strain upon the working parts. `It is another object of my invention to Improve foldingmachines in sundry details hereinafter pointed out. The preferred means by which I have accomplished my several objects are illustrated in the drawings and are hereinafter specifically described.` That which I believeto be new `and desire to cover by this application is set forth in thefclaims.

`In the drawings: Figure 1 is aside view of one end of a folder embodying my improvedconstruction;- 1 l Fig. 2 is an end view of the deviceshown in Fig.`1, as seen `fromthe right insaid ligure; l

Fig. `Sis an enlarged detail, `being a vertical crosssection taken online 3-3-of Fig. 2; and

Fig. 4L is a view similar to FigfQ, but

Showing a modified. form of construction comprising two folding blades which are brought alternately into the bite of the folding rollers. `f .e y

Referring to Figs.` l" `to 3, in which corresponding parts `are indicated by the same reference characters-#10 indicates `a -folding cylinder` mounted upon and `adapted to revolve with a shaftll` which is `mounted in any suitable bearings not shown. A folding blade 12 is fixedlymounted upon a shaft 13 which is revolubly mounted in thefcylinder 10 longitudinally.thereofin4 a suitable longitudinallyextending recess formed in the face of the cylinder:` The shaft` 13 has fix` edly mountedupon itsend portion beyond the.` end of thecylinder 10 a gear 14e 'which meshes with anjinternal* gear `15 iixedly mounted in position. In the construction shown the gear 15`has a three-to-one relation to the gear l4ywhereby the `blade 12 is projected outward beyond `the face of the cylinder 10 at three pointscircumferentially aboutthe cylinder for each complete revolution of the cylinder. Folding rollers 16-17 are so positioned as to receive the edge of the blade 12 between them at `one `timefoi' eachrotation `of .thecylinderfd My improved" means* for balancing the folder and forufeinfrcing 'y it comprise a heavy fly-wheelf preferably in theform of` a disk, being-fixedly mounted upon the shaft 11 and furnishing a bearing` for the" outer end of the shaft" 13. The fly-wheel18 is also provided with aqveight y,19 secured thereondiametrically opposite the `shaft 13,` such weight being "adapted to `lbalallirce the cylinder `as a whole with reference to the weight of the folding blade and its co`acting parts. y `j V -"1 The shaft 13'i`s further reinforced in my improved construction "byymeans e of rollers 20;#21 revolubly mounted `onisaid shaftat opposite sides of the gear 14,` `said rollers being adapted toengage rings 122-23, respec# tively, xedly mounted on oppositesidesf ofi the internal gear 15; `By thismeans the gear 14is held in proper mesh withthe gear 15` without `having the outer ends of the teeth of either gear brought forcibly into cont-act` with the othergeary They shaft is still fur-1 ther lreinforced by means of arms 24%25 Irevolubly mounted upon the shaftl 13 adja centto the rollers `20e-21, respectivelypsaid arms being provided their ends with roll-v4 ers 26 which run in suitable annular grooves in the outer faces of the rings 22-23 The arms 24-25 and the rollers 26 are held in position relative to the rings 22-23 by means of annular retainers 27 28 fixed upon the outer faces of the rings 22-23,

respectively, and provided with flanges 29 extending inward opposite the rollers 26.

The construction shown in Fig. iL is very similar to that shown in Figs. 1 to 3, and the corresponding parts are indicated by the same reference characters, but with the addition of an exponentc. In this construction a shaft 30 is provided in addition to the shaft 13?, theI shaft 3O1beingprovided with a folding blade 31. The shaft 30 is also provided with a gear 32 which meshes with the gear. 15a, and. is otherwise equipped in a manner similar to that described in con- ;nection with the shaft 13.

. Moreover, it will be understood that I do;

not wish to be restrieted'to the `use of my preferred-form of construction 1n which the lf. out-bearing: member is in the form of a flywheel, except as claimed.

What I claimas my invention and desire to secure byzLetters Patent, is-f l 1. In a folder, the combination ofa shaft, a cylinder fixedly. mounted on said shaft so as vto rotate therewith, a folding blade shaft revolubly mounted/on said cylinder near its periphery, a folding blade mounted on said second-named shaft, aninternal gear fixedly held in position adjacent to said cylinder, a vgear fixed on said' folding blade shaft beyond thev end of the cylinder and meshing with saidl internalv gear, and a bearing member fixedly mounted on said first-named shaft and providing'a bearing for said second named shaft beyond said second-named ear.

2.V In a folder, the combinationof a s aft, a cylinder fixedly mounted on said. shaft so as to rotate therewith, a folding blade shaft revolublymountedon said cylinder near its periphery., a fol'dingbladey mounted on said second-named shaft, an internal gear fixedly held in position adjacent to', said cylinder, a gear. fixed on said folding. blade shaft be.- y'ond the end? of the. cylinder and meshing hereinafter specifically l Wi'thsaid internal gear, and a heavy fly.-

wheel mounted on saidfrst-named shaft and providing abearing for said second-named shaft beyond ,said ,second-named gear.

3. In a folder, t-he combination of a shaft, a cylinder fixedly mounted on said shaft so as to rotate therewith, a folding blade shaft revolubly mounted 0n said .cylinder near its periphery, a folding blade mounted on said second-n-amed shaft, an internal gear fixedly held in position adjacent to said cylinder, a gear fixed on said folding blade shaft beyond the end of the cylinder and meshing with said internal gear, and bearing means carried by said firstnamed shaft for the end of said folding blade shaft beyond said secondnamed gear, said bearing means i being weighted on the side thereof diametrically opposite said folding blade for balancing the cylinder asa whole with reference to the folding blade and its attached parts.

4. In a folder, the combination of a shaft, a cylinder fixedly mounted on said shaft so as to rotate therewith, a folding blade shaft revolubly mounted on said cylinder near its peripher a folding' blade mounted on said second-named shaft, an internal gear fixedly held in position adjacent to said'cylinder, a gear fixed on said folding blade shaft beyond the end of the `cylinder and meshing with said 4internal gear, a stationary ring of a greater diameter than said cylinder secured in position opposite the end of said cylinder, and radially-extending means slidably connected at its outer end portion with said ring and revolubly connected at its inner end portion with said second-named shaft for supporting the outer end of said shaft.

5. In a folder, the combination of a shaft, a cylinder fxedly mounted on said shaft so as to rotate therewith, a folding blade shaft revolubly mounted on said cylinder near its periphery, a folding blade mounted on said second-named shaft, an'internal gear fxedly held in position adjacent to said cylinder, a gear fixed on said folding blade shaft beyond the end of the cylinderand meshing with said internal gear, a stationary ring placed radially outside. of the path of said folding blade shaft and secured in position opposite the end of saidcylinder, and an arm revolubly molmted yon said second-named shaft and extending outwardly toward said ring, having a shifting bearing on said ring for supporting the outer end of said shaft.

6. In a folder, the combination of a shaft, a cylinder fixedly mounted on said shaft so as to rotate therewith, a folding blade shaft revolubly mounted on said cylinder near its periphery, a folding blade mounted on said second-named shaft, an internal gear fixedly held in position adjacent to said cylinder, a gear fixed on said folding blade shaft beyond the end of the cylinder and meshing with. said internal gear, a stationary ring secured in position opposite the end of said cylinder and `provided with an annular groove in its. face, an arm revolubly mounted on said second-named shaft, and a roller revolublymounted on seid arm adapted to run in the groove in said ring for supporting the outer end of seid second-nen'led shaft.

7. In a folder, the combination of a, shaft, :L cylinder Xedly mounted on Sadsheft so as to rotate therewith, a folding blade shaft revolubly mounted 011 said cylinder near its periphery, e folding blade carried by said second-named shaft, en internal gear xedly held in position adjacent one end of seid cylinder, a gear fixed on said folding blade shaft beyond the end of the cylinder and meshing with seid internal gear, a, stationary track member secured opposite the end of seid cylinder and having e groove in one of its side feces, an arm revolubly mounted on seid ysecond-named shaft, a roller revolubly mounted on seid arm and running in said groove, and another roller revolubly mounted on said second-named shaft and bearing against the inner edge of seid track member.

MARTIN W. BRUESHABER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G. 

